To adjust Sensitivity:1. From the Sonar Page,
press MENU|ENT.2. The Sensitivity
Control Bar appears. Press ↓ to decrease sensitivity or press ↑ to increase
sensitivity. When it's set at the desired level, press EXIT. (When you reach
the maximum or minimum limit, a tonesounds.)Unit freezes, locks up, or operates erratically:1. Electrical noise from
the boat's motor, trolling motor, or an accessory may be interfering with the
sonar unit. Rerouting the power and transducer cables away from other
electrical wiring on the boat may help. Route the sonar unit's power cable
directly to the battery instead of through a fuse block or ignition switch2. Inspect the
transducer cable for breaks, cuts, or pinched wires.3. Check both the
transducer and power connectors. Make certain both are securely plugged in to
the unit.Weak bottom echo, digital readings erratic, or no fish
signals:1. Make certain the
transducer is pointing straight down. Clean the face of the transducer. Oil,
dirt and fuel can cause a film to form on the transducer, reducing its
effectiveness. If the transducer is mounted inside the hull, be sure it is
shooting through only one layer of fiberglass and that it is securely bonded to
the hull. Do NOT use RTVsilicone rubber adhesive
or Marine-Tex epoxy.2. Electrical noise from
the boat's motor can interfere with the sonar.This causes the sonar to
automatically increase its Discrimination or noise rejection feature.This can cause the unit
to eliminate weaker signals such as fish or even structure from the display.3. The water may be
deeper than the sonar's ability to find the bottom.If the sonar can't find the
bottom signal while it's in the automatic mode, the digital sonar display will
flash continuously. It may change the range to limits far greater than the water
you are in. If this happens, place the unit in the manual mode, then change the
range to a realistic one, (for example, 0-100 feet) and increase the
sensitivity. As you move into shallower water, a bottom signal should appear.4. Check the battery
voltage. If the voltage drops, the unit's transmitter power also drops,
reducing its ability to find the bottom or targets.Bottom echo disappears at
high speeds or erratic digital reading or weak bottom echo while boat is moving1. The transducer may be
in turbulent water. It must be mounted in a smooth flow of water in order for
the sonar to work at all boat speeds. Air bubbles in the water disrupt the
sonar signals, interfering with its abilityto find the bottom or
other targets. The technical term for this is cavitation.2. Electrical noise from
the boat's motor can interfere with the sonar.This causes the sonar to
automatically increase its Discrimination ornoise rejection feature.
This can cause the unit to eliminate weakersignals such as fish or
even structure from the display. Try usingresistor spark plugs or
routing the sonar unit's power and transducercables away from other
electrical wiring on the boat.Thanks. Keep updated for any more query.
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Some general suggestion - not familiar with White. If you know where the tensioner is, take a scrap of relatively stiff cloth in a constrasting color to the thread to make it easier to see. A good stitch tension will look like a line of adjacent dashed on top and dash-dot-dash on the bottom. If you are seeing dash-dot-dash on top and Dash-dash on the bottom, the tension is too tight. If - usual case - the bottom has dash-loopyloop-dash, or worse, snags, the tension is too loose. Remember tension may need to be adjusted for thicker or thinner work.

If you wish to get some details; visit the site linked here. Pull up older posts. http://electronicshelponline.blogspot.com/ Line faults & possible causes to LCD & Plasma screen are given with illustrations. You can get an idea about the fault to an extent. Faults to all LCD & Plasma screen are similar, irrespective of its brand and screen size.

This problems ur tv have can't not be fix by adjustment.The tv have a problems known as convergence problems,it dead.Tv have colors lines R,G,B mis alignments,have colors shadow pictures or 3D pictures look alike?The tv convergence board have dead 2 STK convergence ICS and some or all of it resistors too.These parts on the tv convergence board,must be replaced to repair the tv convergence board to solved the tv convergence picture problems.The shop,will cost u like $300-350 for parts and labors.

I have the same problem, currently searching for a solution. Have you resolved your problem yet? Looking to repair myself, any tips or ideas that you have/expirenced would be greatly appreciated. Thanks, Todd

I had the same problem with my TV, but the hue was blue. I was told that not only did I have to replace the picture tube that wasn't staying on, but I would have to replace them all because they would not mix properly. After much investigation, I found that there is an adjustment for a variable power supply to each tube that can brighten and lighten each tube. I adjusted the RED pot and my picture color issue was resolved! To access this adjustment you must remove the front panel on the TV. At the bottom corners there are two small screw covers that you must remove. Then un-screw the screws under the covers. Then pull the front panel off of the TV, (it hooks under the top near the screen so it will swing out from the bottom). Now remove the wooden panel in the center, (four screws). The pot adjustments are at the bottom of the TV. They are marked for Red, Blue, and Green. They are extremely sensitive, don't turn them much! If you over adjust you will get red, green, or blue lines on your screen. Adjust back down to remove these, (this is also the remedy for removing these lines that can appear over time). Good Luck and God Bless!

You can get rid of the red dots by adjusting the V-scan voltage down, it's on the panel sticker inside the unit, you can find the test point on the DC to DC pcb, and the adjustment pot is on the same board, lower it as you watch the screen and only lower it enough to rid the screen of the dots